Thumbnail Maker

Generate thumbnails from a list of image URLs. Give it URLs, a target size, and an output format — get back a resized thumbnail for each one, powered by ImageMagick under the hood.

What it does

• Downloads each image URL you provide.
• Resizes it to your target width/height, either fit-within-box (keeps aspect ratio, no cropping) or exact-size (crops to fill).
• Converts to your chosen output format: PNG, JPG, WebP, GIF, BMP, or TIFF.
• Saves every thumbnail to the run's key-value store and lists it in the dataset, alongside the original source URL.

Input

Field	Description
imageUrls	List of image URLs to thumbnail
width	Thumbnail width in pixels
height	Thumbnail height in pixels
keepAspectRatio	true fits the image within width × height without cropping; false crops to exactly width × height
outputFormat	png, jpg, webp, gif, bmp, or tiff
jpegQuality	Quality (1–100) for jpg/webp output

Output

One dataset row per image:

• sourceUrl — the original image URL
• thumbnailUrl — direct link to the generated thumbnail
• thumbnailKey, width, height, format — thumbnail details
• success / error — whether that image processed cleanly

Thumbnail files themselves live in the run's key-value store.

Pricing

Pay per thumbnail successfully generated.

Data pipeline toolkit

Part of the Data pipeline toolkit — small, chainable Actors for cleaning, transforming, and generating data inside a larger pipeline:

• jq Helper – transform JSON with jq — Run jq programs over inline JSON or a linked Apify dataset.
• DuckDB Helper – SQL over CSV, JSON, Parquet, Excel, SQLite — Run a DuckDB SQL query over remote/local files, push results to a dataset.
• Regex Helper — Apply named regular expressions to strings, extract structured matches.
• URL Wrangler — Join, decompose, and rewrite URLs and query params in batch.
• ZIP Code Helper — Resolves US ZIP codes into city, state, county, and more.
• Postal Address Normaliser — Parses and normalises postal addresses using libpostal.
• Phone Number Wrangler — Validate, format, and parse phone numbers using libphonenumber.
• UUID Generator — Generate bulk UUIDs (v1, v3, v4, v5, v7) on demand.
• Secure Password & Passphrase Generator — Generate secure passwords and diceware passphrases per NIST guidance.
• Katana Web Crawler (ProjectDiscovery) — Crawl websites with Katana, stream results as JSONL.
• ProjectDiscovery Notify — Stream records to Slack, Discord, Telegram, Email, and more.

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